Abstract
We have synthesized Murraya Koenigii leaves powder-derived carbon nanodots (CNDs) by hydrothermal method. A tribute to our commitment to environmental sustainability is the unique composition of our CNDs, which are made entirely of natural carbon sources and a green solvent, water. Our further efforts to improve performance led us to start making nitrogen-doped CNDs. By using urea as a non-toxic source of nitrogen, we observed a substantial increase in fluorescence intensity, extending the usefulness and potential of these nanomaterials. We investigated the optical properties using UV-Vis and fluorescence spectroscopy. The other parameters, like structural and size-shape morphology, were analyzed using FTIR, XRD, and HR-TEM, respectively. The fluorescence spectroscopy demonstrated their capability to exhibit wavelength-dependent photoluminescence (PL), highlighting the potential of these CNDs for cell bioimaging applications. The fluorescence properties affirm their suitability for biomedical applications, as they do not involve any inherent risk to cells.
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